1) All corners 2) Boxlike 3) Cube-shaped 4) Cubic 5) Far from aerodynamic 6) Hardly aerodynamic 7) Like a Chevy Blazer 8) Like a crossword 9) Like a Honda Element 10) Like a VW bus 11) Like economy cars 12) Like Hummers 13) Like Mini Coopers 14) Like old volvos 15) Like the honda element 16) Like the Nissan Cube Found on https://www.crosswordclues.com/clue/boxy